- All references here are to the Communicator Manual.
- Refer to Displaying the Controllers to display the controller.
- Not all Units Found due to Updating Primary Units
- 'Lost unit number' alarm
- No Local Communication with PC
Not all Units Found due to Updating Primary Units
In other words, the number of controllers is not identical to the number of controllers entered in the Controllers menu (In the manual, refer to Identifying the Controllers).
1. Make sure the Communicator is connected to an electric power supply.
2. Press Hot Key 0 and check if either some of the controllers are missing (empty squares), or all of them.
3. Check communication with the missing unit:
- If the system has a wired connection, refer to Channel/Signal Tests.
- If the system has an RF link, refer to Channel/Signal Tests.
4. Check Baud Rate (refer to the relevant section in Network connection) on both sides if using 232/485 communication card.
5. Go over the number of controllers and make sure there is no conflict between the units (make sure that two units do not have the same configuration number).
6. If all above are OK:
- Check the wiring for 232/485 communication card.
- Check RF card signal strength (refer to Testing the Cellular Signal Strength).
'Lost unit number' Alarm
1. Verify that the Communicator is connected to a power supply.
2. Press Hot Key 0 and check if either some or all of the controllers are missing (empty squares).
3. Verify communication with the missing unit:
- If the system has a wired connection, go to System – Test – Wired RS232/485.
- If the system has an RF link, go to Radio System – Test Radio RF Signal.
4. If you are using a 232/485 communication card, check the Baud Rate on both sides (refer to Configuring the Channel Settings).
5. If an RF communication card is being used, check Additional Channel Setting.
6. Go over the controller numbers and make sure there is no conflict between the units (make sure two units do not have the same configuration number).
7. If all above are Ok:
- Make sure the wiring is OK for communication card 232/485.
- Check signal strength for RF card (refer to Testing the Cellular signal Strength).
No Local Communication with PC
1. Ensure that the serial port Baud Rate matches the PC baud rate.
2. Go to Computer Port list. 'Com 1 RD' LED should flash on the front panel. Test the Communicator through RotemNet software.
- If the LED does not flash, it is not the right computer port.
3. If using a USB cable, reinstall the driver from the CD (refer to USB Driver Installation, page 14).
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